Spoke nipple



FIG. 1 is a perspective view illustrating multiple spoke nipples of the present invention, with the phantom lines depicting environmental structure and forming no part of the claimed design;

FIG. 2 is an enlarged perspective view of the spoke nipple of the present invention;

FIG. 3 is a side elevational view of FIG. 2;

FIG. 4 is a left end view of FIG. 2; and,

FIG. 5 is a right end view of FIG. 2. 

The ornamental design for a spoke nipple, as shown and described. 